When the cell phone rang, the words “private number” flashed on the screen. Marisol Valles Garcia knew who was calling. The threatening, mysterious voice on the other end of the line had hounded her for almost four months.

But this phone call had a starkly sinister tone. The man said something he’d never said before. He was coming to pick up the 21-year-old police chief at the station. “Some people” wanted to see her, he said.